WO2001035556A3 - Method and apparatus for transmission and reception of fm in-band on-channel digital audio broadcasting - Google Patents

Method and apparatus for transmission and reception of fm in-band on-channel digital audio broadcasting Download PDF

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Publication number
WO2001035556A3
WO2001035556A3 PCT/US2000/042061 US0042061W WO0135556A3 WO 2001035556 A3 WO2001035556 A3 WO 2001035556A3 US 0042061 W US0042061 W US 0042061W WO 0135556 A3 WO0135556 A3 WO 0135556A3
Authority
WO
WIPO (PCT)
Prior art keywords
carriers
sub
synchronization word
bits
block synchronization
Prior art date
Application number
PCT/US2000/042061
Other languages
French (fr)
Other versions
WO2001035556A2 (en
Inventor
Brian William Kroeger
Jeffrey S Baird
Original Assignee
Ibiquity Digital Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ibiquity Digital Corp filed Critical Ibiquity Digital Corp
Priority to MXPA02004550A priority Critical patent/MXPA02004550A/en
Priority to DE60022220T priority patent/DE60022220T2/en
Priority to BRPI0015462A priority patent/BRPI0015462B1/en
Priority to JP2001537186A priority patent/JP4864263B2/en
Priority to CA2389470A priority patent/CA2389470C/en
Priority to AT00993065T priority patent/ATE303021T1/en
Priority to AU29249/01A priority patent/AU769559B2/en
Priority to EP00993065A priority patent/EP1232591B1/en
Publication of WO2001035556A2 publication Critical patent/WO2001035556A2/en
Publication of WO2001035556A3 publication Critical patent/WO2001035556A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/30—Arrangements for simultaneous broadcast of plural pieces of information by a single channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2071—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the carrier phase, e.g. systems with differential coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/18—Aspects of broadcast communication characterised by the type of broadcast system in band on channel [IBOC]
    • H04H2201/183—FM digital or hybrid
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/20—Aspects of broadcast communication characterised by the type of broadcast system digital audio broadcasting [DAB]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

A method for transmission of data in a digital audio broadcasting system includes the steps of providing a plurality of orthogonal frequency division multiplexed sub-carriers, with the sub-carriers including data sub-carriers and reference sub-carriers, and modulating the data sub-carriers with a digital signal representative of information to be transmitted. The reference sub-carriers are modulated with a sequence of timing bits, wherein the sequence of timing bits includes an unambiguous block synchronization word, and the number of bits comprising the block synchronization word is less than one half of the number of bits in said timing sequence. Then the orthogonal frequency division multiplexed sub-carriers are transmitted. Receivers that differentially detect the block synchronization word and use the block synchronization word to coherently detect the digital signal representative of information to be transmitted are also included.
PCT/US2000/042061 1999-11-10 2000-11-10 Method and apparatus for transmission and reception of fm in-band on-channel digital audio broadcasting WO2001035556A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
MXPA02004550A MXPA02004550A (en) 1999-11-10 2000-11-10 Method and apparatus for transmission and reception of fm in band on channel digital audio broadcasting.
DE60022220T DE60022220T2 (en) 1999-11-10 2000-11-10 METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING FM IN-BAND ON-CHANNEL DIGITAL AUDIO BROADCAST SIGNALS
BRPI0015462A BRPI0015462B1 (en) 1999-11-10 2000-11-10 method for transmitting data to a digital audio broadcasting system, method for receiving data in a digital audio broadcasting system, transmitter for transmitting data in a digital audio broadcasting system, and receiver for receiving data in a digital audio broadcasting system
JP2001537186A JP4864263B2 (en) 1999-11-10 2000-11-10 Data transmission and reception method in digital audio broadcasting system
CA2389470A CA2389470C (en) 1999-11-10 2000-11-10 Method and apparatus for transmission and reception of fm in-band on-channel digital audio broadcasting
AT00993065T ATE303021T1 (en) 1999-11-10 2000-11-10 METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING FM IN-BAND ON-CHANNEL DIGITAL AUDIO BROADCAST SIGNALS
AU29249/01A AU769559B2 (en) 1999-11-10 2000-11-10 Method and apparatus for transmission and reception of FM in-band on-channel digital audio broadcasting
EP00993065A EP1232591B1 (en) 1999-11-10 2000-11-10 Method and apparatus for transmission and reception of fm in-band on-channel digital audio broadcasting

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/438,148 1999-11-10
US09/438,148 US6549544B1 (en) 1999-11-10 1999-11-10 Method and apparatus for transmission and reception of FM in-band on-channel digital audio broadcasting

Publications (2)

Publication Number Publication Date
WO2001035556A2 WO2001035556A2 (en) 2001-05-17
WO2001035556A3 true WO2001035556A3 (en) 2001-10-04

Family

ID=23739444

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/042061 WO2001035556A2 (en) 1999-11-10 2000-11-10 Method and apparatus for transmission and reception of fm in-band on-channel digital audio broadcasting

Country Status (15)

Country Link
US (2) US6549544B1 (en)
EP (1) EP1232591B1 (en)
JP (1) JP4864263B2 (en)
KR (1) KR100691092B1 (en)
CN (1) CN1228934C (en)
AR (1) AR028875A1 (en)
AT (1) ATE303021T1 (en)
AU (1) AU769559B2 (en)
BR (1) BRPI0015462B1 (en)
CA (1) CA2389470C (en)
DE (1) DE60022220T2 (en)
MX (1) MXPA02004550A (en)
RU (1) RU2237369C2 (en)
TW (1) TW502508B (en)
WO (1) WO2001035556A2 (en)

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BRIAN KROEGER ET AL: "Robust modem and coding techniques for FM hybrid IBOC DAB", IEEE TRANSACTIONS ON BROADCASTING,US,IEEE INC. NEW YORK, vol. 43, no. 4, December 1997 (1997-12-01), pages 412 - 420, XP002104794, ISSN: 0018-9316 *

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ATE303021T1 (en) 2005-09-15
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RU2237369C2 (en) 2004-09-27
US20030137928A1 (en) 2003-07-24

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